本题目来源于试卷: Physics Unit7: Linear Momentum,类别为 国际高中通用物理
[单选题]
Two identical 1500-kg cars are moving perpendicular to each othm mdzrw2u 6x*n4k0av *er. One mnxx 52t0 cic*boves with a speed of 25 m/s due north and the othernc0t52 * xbxic moves at 15 m/s due east. What is the total momentum of the system?
A. $4.4 \times 10^{4} \; kg \cdot m/s$ at $31^{\circ}$ N of E
B. $4.4 \times 10^{4} \; kg \cdot m/s$ at $59^{\circ}$ N of E
C. $6.0 \times 10^{4} \; kg \cdot m/s$ at $31^{\circ}$ N of E
D. $6.0 \times 10^{4} \; kg \cdot m/s$ at $59^{\circ}$ N of E
参考答案: B
本题详细解析:
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